SUPERCONDUCTING PROPERTIES OF IRIDIUM THIN FILMS

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-608-C6-609
Author(s):  
L. B. Holdeman ◽  
R. J. Soulen ◽  
Jr ◽  
T. F. Finnegan ◽  
P. N. Peters
Keyword(s):  
Thin Films ◽  
Superconducting Properties

scholarly journals Strain-stabilized superconductivity

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
J. P. Ruf ◽  
H. Paik ◽  
N. J. Schreiber ◽  
H. P. Nair ◽  
L. Miao ◽  
...  
Keyword(s):  
Thin Films ◽  
Materials Science ◽  
Condensed Matter ◽  
Quantum States ◽  
Low Energy ◽  
Superconducting Transition ◽  
Superconducting Properties ◽  
Detailed Understanding ◽  
Epitaxial Strain ◽  
Promising Strategy

AbstractSuperconductivity is among the most fascinating and well-studied quantum states of matter. Despite over 100 years of research, a detailed understanding of how features of the normal-state electronic structure determine superconducting properties has remained elusive. For instance, the ability to deterministically enhance the superconducting transition temperature by design, rather than by serendipity, has been a long sought-after goal in condensed matter physics and materials science, but achieving this objective may require new tools, techniques and approaches. Here, we report the transmutation of a normal metal into a superconductor through the application of epitaxial strain. We demonstrate that synthesizing RuO2 thin films on (110)-oriented TiO2 substrates enhances the density of states near the Fermi level, which stabilizes superconductivity under strain, and suggests that a promising strategy to create new transition-metal superconductors is to apply judiciously chosen anisotropic strains that redistribute carriers within the low-energy manifold of d orbitals.

Large Area Uniform Deposition of YBa2Cu3O7 Thin Films by a 90° Off-axis Sputtering Technique

1995 ◽  
Vol 401 ◽  
Author(s):  
R. A. Rao ◽  
Q. Gan ◽  
C. B. Eom
Keyword(s):  
Thin Films ◽  
Transition Temperature ◽  
Uniform Thickness ◽  
Superconducting Properties ◽  
Large Area ◽  
Substrate Rotation ◽  
Single Target ◽  
High Transition ◽  
Substrate Position ◽  
Uniform Deposition

AbstractLarge area uniform deposition of Yba2Cu3O7 (YBCO) thin films on 8 inch diameter wafers, using a 3 inch diameter sputtering target and optimized substrate rotation in a single target 90° off-axis sputtering technique, is reported. The variation in thickness, composition and superconducting properties was studied as a function of substrate position on stationary and rotating substrates. The films deposited from a 3” target on rotating substrates displayed uniform thickness (< ±5% variation) and composition (< 2.3% deviation from target stoichiometry) and a consistently high transition temperature ( Tc > 88.3°K) over an 8” diameter area.

Enhancement in superconducting properties of Y-Ba-Cu-O thin films by post-annealing in an inert atmosphere

1992 ◽  
Vol 27 (19) ◽  
pp. 5276-5280
Author(s):  
Y. H. Kim ◽  
T. S. Hahn ◽  
S. S. Choi ◽  
S. J. Park
Keyword(s):  
Thin Films ◽  
Inert Atmosphere ◽  
Superconducting Properties ◽  
Post Annealing

Superconducting properties and surface morphology of SmBa2Cu3O6+δ thin films

2001 ◽  
Vol 357-360 ◽  
pp. 1358-1360 ◽  
Author(s):  
Kimihiko Sudoh ◽  
Yutaka Yoshida ◽  
Noriaki Matsunami ◽  
Yoshiaki Takai
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Superconducting Properties

scholarly journals Pressure-induced monotonic enhancement of Tc to over 30 K in the superconducting Pr0.82Sr0.18NiO2 thin films

2021 ◽  
Author(s):  
Ningning Wang ◽  
Mingwei Yang ◽  
Keyu Chen ◽  
Zhen Yang ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Pressure Effect ◽  
Ambient Pressure ◽  
Strain Engineering ◽  
Superconducting Properties ◽  
Liquid Pressure ◽  
Infinite Layer ◽  
Effect Of Pressure ◽  
First Time

Abstract The successful synthesis of superconducting nickelate thin films with the highest Tc ~ 15 K has reignited great enthusiasms on this class of potential analogue to high-Tc cuprates suggested decades ago. To pursue higher Tc is always an important task in studying new superconductors. Here we report for the first time the effect of pressure on the superconducting properties of infinite-layer Pr0.82Sr0.18NiO2 thin films by measuring electrical resistivity under various pressures in a cubic anvil cell apparatus. We find that the onset of superconductivity, Tconset, can be enhanced monotonically from ~ 18 K at ambient pressure to ~ 31 K without showing signatures of saturation upon increasing pressure to 12.1 GPa in the presence of liquid pressure transmitting medium. This encouraging result indicates that the Tc of infinite-layer nickelates superconductors can be further raised up by applying higher pressures or strain engineering in the heterostructure films. In addition to the pressure effect, we also discussed the influence of stress/strain on the superconducting properties of the nickelate thin films.

In-field characterization of FeTe0.8S0.2epitaxial thin films with enhanced superconducting properties

2010 ◽  
Vol 23 (5) ◽  
pp. 052001 ◽  
Author(s):  
Paolo Mele ◽  
Kaname Matsumoto ◽  
Yasunori Haruyama ◽  
Masashi Mukaida ◽  
Yutaka Yoshida ◽  
...  
Keyword(s):  
Thin Films ◽  
Superconducting Properties

X-ray diffraction studies elucidating high temperature superconducting properties of YBa2Cu3O7−x thin films

1994 ◽  
Vol 209 (4) ◽  
Author(s):  
M. Schieber ◽  
Y. Ariel ◽  
A. Raizman ◽  
S. Rotter
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Quantitative Evaluation ◽  
Superconducting Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Temperature Superconducting

AbstractA quantitative evaluation of the influence of the amount of the crystallographically unoriented grains of YBa

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